A flat washer is a thin, usually round, plate with a hole in the middle that is normally used to distribute the load of a threaded fastener. USS flat washers have a large, wider body. SAE flat washers are machined to a tighter specification and have a smaller outside diameter.
| Item | Flat Washer |
|---|---|
| Material | Steel |
| Finish | Galvanized |
| For Screw Size | 1" |
| Outside Diameter | 2-1/2 in |
| Minimum Thickness | 11/64 in |
| System of Measurement | Inch |
| Inside Diameter | 1 in |
| Package Quantity | 48 |
| Thread Type | USS |
| Material Grade/Class | Grade 2 |
| Country of Origin (subject to change) | China |